Which of the following qualifies as a state function? the change in potential energy when a book is transferred from the floor to a table the heat evolved when a cube of sugar is oxidized to CO(g) and H₂O(g) the work accomplished by burning a gallon of gasoline Save Answer

Q: What is the kinetic energy of a baseball with a mass of 117.7 g traveling at a speed of 1.377 m/s?

A: Given, Mass of a baseball (m) = 117.7 g = 0.1177 kg Speed of a baseball (v) = 1.377 m/s Kinetic…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

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Q: One mole ammonium nitrate dissolves in water to produce aqueous ammonium ions and nitrate ions,…

A: Thermochemical equation of one mole of ammonium nitrate dissolves in water to be determined.

Q: What is the specific heat of a 66.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The relation between specific heat and heat energy is given by q = m * C * ΔT Where q = heat energy…

Q: If a system absorbs 155 kJ of heat from its surroundings and the system does 53 kJ of work on its…

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Q: A calorimeter is used to measure the heat transferred between objects or in a chemical or physical…

A: ASSUMPTIONS IN CALORIMETRY : 1. no heat is transferred between the calorimeter and the outside…

Q: almonia, water, iron and gold which has highest specific heat capacity ?

A: Given information,           Ammonia          Water           Iron           Gold

Q: f a system does 19.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: We can find the change in the internal energy of the system(∆U) by using the equation for the 1st…

Q: The temperature of 756 g of water in a calorimeterincreases from 23.2°C to 37.6°C. How much heat…

A: Given: Mass = 756g Initial temperature= 23.2oC Final temperature= 37.6oC To find: The heat given off…

Q: A chemical reaction is run in which 662 Joules of heat are generated and 797 Joules of work are done…

A: The question is based on the concept of chemical thermodynamics. it involves application of first…

Q: MUST SHOW ALL WORK AND UNITS 1. The temperature of a 98.7 g piece of metal increases from 17.0 °C to…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: An unknown metal with a specific heat of 0.385j has an initial temperature of 65.4 C. the metal is…

A: The heat absorbed or released by the Substance related with each other by following formula -   M1…

Q: During a calorimetry experiment, the specific heat of a metal is unknown. A hot piece of metal is…

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Q: Use the References to access important values if needed for this question. When a solid dissolves in…

A: calculate the enthalpy of dissolution of CsCl(s) in kJ/mol.

Q: what is the amount of internal energy (in joules) for a system that has performed 1478.714 J of work…

A: The internal energy of a system can be changed in two ways: (i) By allowing heat to flow into the…

Q: Consider the production of copper metal from copper ore: 2 Cu3FeS3 (s) + 7 O2 (g) → 6 Cu (s) + 2…

A: Theoretical yield is the maximum amount of product that could be formed from the given amount of…

Q: During a certain chemical reaction 1,395 J of heat is released from the system and 360 J of work is…

A: Given :-  work done on surrounding = 360 J  heat released from system = 1395 J  To be calculated :-…

Q: What is the internal energy of a system that has 45.2 J of work done to it and releases 74.6 J of…

A: Given, work done on system ,W = 45.2 J Heat released from system to sorroundings, q  = 74.6 J

Q: How much heat is released when 8.00 grams of solid magnesium react with gaseous oxygen to produce…

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Q: The fuel value of natural gas is 54.0 kJ/g how much heat results from the combustion of 2.84 kg of…

A: The fuel value of natural gas is given in kJ/g unit. So first convert the given mass of natural gas…

Q: .  A 70.0-g piece of metal at 80.0 °C is placed in 100 g of water at 22.0 °C contained in a…

A: When a hot metal is placed in cold water, water gains heat energy and metal loses heat energy.

Q: a system does 72.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change in…

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Q: If a system absorbs 155 kJ of heat from its surroundings and the system does 95 kJ of work on its…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Heat of dissolution :-          The enthalpy of solution, enthalpy of dissolution, heat of…

Q: An exothermic reaction is one where none of these heat is transferred from a system into the…

A: we have to select the correct statement for an exothermic reaction

Q: AE=

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Q: Which of the following makes sense: When volume of a system is under constant pressure, which of…

A: The enthalpy change is defined as the internal energy change plus product of constant pressure and…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.